I don't have enough context to write an accurate overview of "Category:User mk-1." The context provided only identifies it as a "Wikimedia category" but doesn't explain what "mk-1" refers to or what purpose this category serves. I cannot invent facts to fill this gap, so I'm unable to provide the requested 2-sentence overview.
AI-generated from the Wikipedia summary — may contain errors.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).